2 * Copyright (c) 2016 Intel Corporation
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
23 #ifndef __DRM_MODESET_H__
24 #define __DRM_MODESET_H__
26 #include <linux/kref.h>
27 struct drm_object_properties;
30 struct drm_mode_object {
33 struct drm_object_properties *properties;
35 void (*free_cb)(struct kref *kref);
38 #define DRM_OBJECT_MAX_PROPERTY 24
39 struct drm_object_properties {
40 int count, atomic_count;
41 /* NOTE: if we ever start dynamically destroying properties (ie.
42 * not at drm_mode_config_cleanup() time), then we'd have to do
43 * a better job of detaching property from mode objects to avoid
44 * dangling property pointers:
46 struct drm_property *properties[DRM_OBJECT_MAX_PROPERTY];
47 /* do not read/write values directly, but use drm_object_property_get_value()
48 * and drm_object_property_set_value():
50 uint64_t values[DRM_OBJECT_MAX_PROPERTY];
53 /* Avoid boilerplate. I'm tired of typing. */
54 #define DRM_ENUM_NAME_FN(fnname, list) \
55 const char *fnname(int val) \
58 for (i = 0; i < ARRAY_SIZE(list); i++) { \
59 if (list[i].type == val) \
60 return list[i].name; \
65 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
66 uint32_t id, uint32_t type);
67 void drm_mode_object_reference(struct drm_mode_object *obj);
68 void drm_mode_object_unreference(struct drm_mode_object *obj);